Extended warranties aren't usually worth the money. When you're buying refurbished, though, they can come in pretty handy, even if you don't actually buy it. Unplggd recommends always buying refurbished gadgets straight from the manufacturer or an authorized retailer, so you know it's gone through some good quality control. Furthermore, they say, check to see if they offer an extended warranty, even if you don't buy it. If they do, it's usually a good sign that they have confidence in the product.

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Buying refurbished can often get you some pretty good discounts, but it can also seem like a crapshoot. Got any of your own tips for buying refurbished tech? Share them with us in the comments, and hit the link to read more. Photo by Chris Kelly.